21233025

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{373}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 43407936

約数和(自身を除く): 22174911

約数列:

[1, 3, 5, 9, 11, 15, 23, 25, 33, 45, 55, 69, 75, 99, 115, 165, 207, 225, 253, 275, 345, 373, 495, 575, 759, 825, 1035, 1119, 1265, 1725, 1865, 2277, 2475, 3357, 3795, 4103, 5175, 5595, 6325, 8579, 9325, 11385, 12309, 16785, 18975, 20515, 25737, 27975, 36927, 42895, 56925, 61545, 77211, 83925, 94369, 102575, 128685, 184635, 214475, 283107, 307725, 386055, 471845, 643425, 849321, 923175, 1415535, 1930275, 2359225, 4246605, 7077675, 21233025]

約数ペア:

[(1, 21233025), (3, 7077675), (5, 4246605), (9, 2359225), (11, 1930275), (15, 1415535), (23, 923175), (25, 849321), (33, 643425), (45, 471845), (55, 386055), (69, 307725), (75, 283107), (99, 214475), (115, 184635), (165, 128685), (207, 102575), (225, 94369), (253, 83925), (275, 77211), (345, 61545), (373, 56925), (495, 42895), (575, 36927), (759, 27975), (825, 25737), (1035, 20515), (1119, 18975), (1265, 16785), (1725, 12309), (1865, 11385), (2277, 9325), (2475, 8579), (3357, 6325), (3795, 5595), (4103, 5175)]